Sister 1: INFJ
Sister 2: ESFJ
The best I can get on with my INFJ-sister for we've some personality traits in common. I like my mother for her introverted nature and my father for his practical and logical sense. With my ESFJ-sister there have been some clashes but mostly we'll manage just fine (as long as we're not for too much time in the same room ).
MBTI-types of friends are difficult.. I know a study friend is INTP for she has tested herself. Rest of my friends I have to guess myself. I think ISFP and xNFP.